/*
 * Copyright 2017 by Simba Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

package org.apache.spark.sql.simba.index

import org.apache.spark.sql.catalyst.InternalRow

/**
 * Created by dong on 1/15/16.
 * Encapsulated HashMap Index
 */
class HashMapIndex[T] extends Index with Serializable {
  var index = new java.util.HashMap[T, Int]()
}

object HashMapIndex {
  def apply[T](data: Array[(T, InternalRow)]): HashMapIndex[T] = {
    val res = new HashMapIndex[T]
    for (i <- data.indices) {
      res.index.put(data(i)._1, i)
    }
    res
  }
}
